Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Dilly's progression into September involves a minor drop in the average high-temperature, slightly receding from a warm 78.4°F (25.8°C) in August to a pleasant 71.1°F (21.7°C). The average temperature drops to a cool 51.1°F (10.6°C) during the night in the month of September.Humidity
In September, the average relative humidity is 80%.Rainfall
In Dilly, during September, the rain falls for 12 days and regularly aggregates up to 2.4" (61mm) of precipitation. In Dilly, during the entire year, the rain falls for 131.7 days and collects up to 27.83" (707mm) of precipitation.Snowfall
June through September are months without snowfall in Dilly.Daylight
In September, the average length of the day in Dilly, Wisconsin, is 12h and 29min.On the first day of September, sunrise is at 6:26 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:43 pm CDT.
Sunshine
In September, the average sunshine is 8.8h.UV index
In September, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: In September, the maximum UV index of 3 translates into these guidelines:
Undertake precautions - Guarding against sun damage is counselled. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Dilly?
What is the average humidity in September in Dilly?
How many days does it rain in September in Dilly?
When it does not snow in Dilly?
Does it snow in Dilly in September?
What is the average length of the day in September in Dilly?
When are sunrise and sunset in September in Dilly?
How long on average sun shines in September in Dilly?
How high is the UV index in September in Dilly?
Average temperature in September
Dilly, WI
- Average high temperature in September: 71.1°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (22.1°F).
- Average low temperature in September: 51.1°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (9.3°F).
Average pressure in September
Dilly, WI
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Dilly, WI
- Average wind speed in September: 7.3mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in September
Dilly, WI
- Average humidity in September: 80%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is April (77%).
Average rainfall in September
Dilly, WI
- Average rainfall in September: 2.4"
The wettest month (with the highest rainfall) is June (4.17").
The driest month (with the least rainfall) is January (1.1").
Average rainfall days in September
Dilly, WI
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (3.5 days).
Average snowfall in September
Dilly, WI
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Dilly, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Dilly, WI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in September
Dilly, WI
- Average sunshine days in September: 16.3 days
The month with the most sunshine days is December (17.5 days).
The month with the least sunshine days is June (10.4 days).
Average UV index in September
Dilly, WI
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Dilly, WI
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Dilly, WI
- Average visibility in September: 5mi
The months with the highest visibility are April, May, June, October and November (6mi).
The month with the lowest visibility is January (4mi).
Dilly, Wisconsin, USA
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